From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 931D7C433E0 for ; Sat, 16 Jan 2021 22:12:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5ED8122C7D for ; Sat, 16 Jan 2021 22:12:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727668AbhAPWLA (ORCPT ); Sat, 16 Jan 2021 17:11:00 -0500 Received: from mail.kernel.org ([198.145.29.99]:59468 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727320AbhAPWKp (ORCPT ); Sat, 16 Jan 2021 17:10:45 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5510722D75; Sat, 16 Jan 2021 22:10:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1610835005; bh=5jSZTdncwbDwBj7VAjrWMlgjCqKLR7rKVzIK8UcQiJY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=QxfFEF+8wT0tnA3OgQi2RxH/KnSjVQhL2LIIIPWMc4inF8qsj0I5dlG1hTgt7ShRn coizL8dTtGmZAgSUSXEXJ16Xw6AKr+LzxsnArykwRWliL8/DSyWhX5OxBLP6aL4/d7 gatwb/MKcRBPBtm0VlT0pHVjBM1O2hzGQhH+o0foCG2sDN8GSJB/fPz1inDuH2Z4wY mtUXVmatPgYay5AyO02HyaXZjNmw7n5vw1EdVY0QGDb+spHzvb7+AR1usBl6guIac6 RxIZWtIBHwnUgA/ZHdETFNV6PAKJwd4C+nXZ6vaxeH5hNAug53E/Xd7X9li7eSEAMj lhNxQqiuN6dUA== From: Timur Tabi To: Andrew Morton , linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, Sergey Senozhatsky , Petr Mladek , roman.fietze@magna.com, keescook@chromium.org, Steven Rostedt , John Ogness , linux-mm@kvack.org, Akinobu Mita Subject: [PATCH 2/2] mm/page_poison: use unhashed address in hexdump for check_poison_mem() Date: Sat, 16 Jan 2021 16:09:50 -0600 Message-Id: <20210116220950.47078-3-timur@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210116220950.47078-1-timur@kernel.org> References: <20210116220950.47078-1-timur@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Now that print_hex_dump() is capable of printing unhashed addresses, use that feature in the code that reports memory errors. Hashed addresses don't tell you where the corrupted page actually is. Signed-off-by: Timur Tabi --- mm/page_poison.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_poison.c b/mm/page_poison.c index 65cdf844c8ad..4902f3261ee4 100644 --- a/mm/page_poison.c +++ b/mm/page_poison.c @@ -67,7 +67,7 @@ static void check_poison_mem(unsigned char *mem, size_t bytes) else pr_err("pagealloc: memory corruption\n"); - print_hex_dump(KERN_ERR, "", DUMP_PREFIX_ADDRESS, 16, 1, start, + print_hex_dump(KERN_ERR, "", DUMP_PREFIX_UNHASHED, 16, 1, start, end - start + 1, 1); dump_stack(); } -- 2.25.1